Finding the Third Proportional to 259,729.50 and 540,240

Step by Step Solution

1. Step 1: Write the proportion equation
   259,729.50 : 540,240 = 540,240 : x
2. Step 2: Convert to fraction form
   259,729.50/540,240 = 540,240/x
3. Step 3: Cross multiply
   259,729.50x = 540,240 × 540,240
4. Step 4: Simplify right side
   259,729.50x = 291,859,257,600
5. Step 5: Solve for x
   x = 291,859,257,600/259,729.50
6. Step 6: Final answer
   x = 1,123,704.69